There is a gag in the last panel that I sure if it really worked. The one alien is waving the wrong way because he has no eyeballs and can’t see. The other alien is pointing to the correct direction. This may read as waving towards the audience. Or it may not be that funny if it reads correctly. However, how is one going to feel these things out if they don’t fiddle with them and try to learn afterwards? I’m still trying various things out in my other webcomic, Sci Fi Guy!